论文部分内容阅读
本文给出球面形零件冲压成形外皱曲极限预报与控制判据及其防外皱曲压边装置的选择判据和内皱曲极限预报与控制判据及其防内皱曲压边装置的选择判据。根据破裂模型和拉深变形力, 导出了破裂极限预报与控制判据。并以08 Al板料为算例, 给出了皱曲和破裂三极限的预报与控制图。依据选定的压边力 Q 并可计算拉深变形力。
In this paper, the criterion for predicting and controlling the ultimate buckling limit of spherical parts and the selection criteria for the buckling preventing and deburring devices and the criterion for predicting and controlling the inner limit of buckling are given. Choose the criteria. According to the rupture model and drawing deformation force, the rupture limit prediction and control criterion are derived. Taking the 08 Al sheet as an example, the prediction and control charts of the three limits of buckling and rupture are given. Based on the selected blank holder force Q and deforming force can be calculated.